linux-kernel - Re: [RESEND PATCH v6 07/10] spmi: pmic-arb: block access for invalid PMIC arbiter v5 SPMI writes

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Message-Id: <20220831174049.079EEC433C1@smtp.kernel.org>
Date:   Wed, 31 Aug 2022 10:40:47 -0700
From:   Stephen Boyd <sboyd@...nel.org>
To:     Fenglin Wu <quic_fenglinw@...cinc.com>,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     quic_collinsd@...cinc.com, quic_subbaram@...cinc.com,
        quic_fenglinw@...cinc.com, tglx@...utronix.de, maz@...nel.org,
        David Collins <collinsd@...eaurora.org>
Subject: Re: [RESEND PATCH v6 07/10] spmi: pmic-arb: block access for invalid PMIC arbiter v5 SPMI writes

Quoting Fenglin Wu (2022-06-11 20:24:43)
> From: David Collins <collinsd@...eaurora.org>
> 
> The system crashes due to an access permission violation when
> writing to a PMIC peripheral which is not owned by the current
> ee.  Add a check for PMIC arbiter version 5 for such invalid
> write requests and return an error instead of crashing the
> system.
> 
> Signed-off-by: David Collins <collinsd@...eaurora.org>
> Signed-off-by: Fenglin Wu <quic_fenglinw@...cinc.com>
> ---

Applied to spmi-next